Igniter trip device for explosion-engines.



R. KELLBY.

IGNIPBR TRIP DEVICE POR EXPLOSLON ENGINES.

MPLIOMION FILED wcm/1a, 1913.

LGQSJQL R KELLEY. IGNITER TRIP DEVICE FOR LXPLOSIONn ENGINES.APPLICATION FILED AUG. 1s, 191s.

M093, 1 91uw Patented Apr. 14, 1914.

QW S N W 5 y m fJ i @ma I N ,d l I Q 111511111 w e Y lq 1 l s Q FsirnsROY KELLEY, 0F MINDEN CITY, MICHIGAN.

IGIQ'ITER TRPD'EIIICE FOR EXPLOSION-ENGINES.

maaier.

Specification of Letters Patent.

Vllatented Apr. 14, 1914.

Application filed August 13, 1918. Serial N o. 784,605.

To all whom it may conce/rn:

Be it known that I, ROY KELLEY, a citizen of the United States, residingat Minden City, in the county of Sanilac and State of Michigan, haveinvented certain new and useful Improvements in Igniter Trip Devices forExplosion-Engines, of which the4 vand regulating the engine durmgoperation.

The invention has other novel features which will be more fullydescribed in connection with the accompanying drawings and which will bemore particularly Vpointed out in and by the appended claims.

In the drawings: Figure l, is a view in side elevation of a portion ofthe explosion engine provided with an igniter and show ing theapplication of one form of the device of the invention thereto. Fig. 2,is a perspective detached view of one of the operative parts of myimproved device. Fig. 3, is an end view of theiactuating or trip devicewith one portion in section. Fig. 4, is a vertical, longitudinal,sectional view of the device shown in Fig. 3, with certain parts inelevation. Fig. 5, is a detail end view of one part of the devicedetached from the remainder thereof.

Like `characters of reference designate similar parts throughout thedifferent iigures of the drawings.

As illustrated, the device of my invention is applied to an explosiveengine 1, having an igniter device 2, provided with a spring controlledoperating or trip lever 3. A push or cam rod 4, is reciprocably mountedin bearings, one of which is indicated at 5', and it xvillbe understoodthat the push rod may be actuated from the crank shaft by any of theapproved means.

Adjustably mounted upon the push rod 4, is a support which may be in theform of 't bracket 5, having adjustable means in the vform of screws 6,for locking thel bracket in any desired position of adjustment in thepush rod 4. I movably mount a trip rod support 7, preferably by means ofa pivot 8, on the bracket Tapas clearly shown in Fig.A

4. In this construction the upper end of the bracket projects into arecess 9, formed in the support 7. The front wall 10,: of said recess isnormally in spaced engagement with the front face of the bracket so asto permit of a downward rocking action of the support 7, from the normalposition shown, in the direction of the arrow a. I preferably provide aspring 12, for holding the support 7 in a normal position, and one endof the spring 12, is shown connected with a bracket arm 13, and theother end with a support arm 14.

The support 7, is preferably in theform of an elongated body having alongitudinallydisposed bore, the forward portion 15, of which is smoothand preferably cylindrical, while the rearward portion 16, thereof, isthreaded. In the threaded portion 16, I

provide adjustable stop means which may be in the form of a threaded rod17 having an operating thumb nut 18. A suitable lock or set may beprovided in the form of a thumb nut 19, which is threaded on the rod 17,and is adapted to be turned into engagement with the rear end of thebody 7, to lock the rod 17, in its adjusted positions.

A trip rod is longitudinally movable in the support 7, and in theconstruction shown, the rod has a cylindrical rear portion 20, whichfits the cylindrical portion 15, of the bore with a slight workingclearance so as vto be rotatably and longitudinally movable therein. Theforward end 21, of the bar is preferably polygonal in cross section, andin the present construction the same is shown rectangular, as indicatedin Figs. 3 and 5. The forward end of the trip rod 2l, is adapted forengagement with the lever 3,

`and is-provided with four engaging portions indicated at 22, 23, 24,and 25.

Itis one of the features of my invention to not only provide foraccuracy of the trip operation of the lever 3, but also to provideforthe adjustment of the trip rod so that when one of the engaging endportions becomes Worn, the trip' rod can be shifted or adjusted so as tobring a new engaging portion into operative proximitywith the lever.When all of the. operating portions have become worn, then the end canbe ground dat so as to again present four sharp edges for operating thelever `3.

Referring. to the specific means for adjusting the trip rod to liold anyone of its enloo gaging portions in proximity to the lever..-

3, it will 'be seen that a shoulder will be provided at the junctureofthe cylindrical and square portions 15 and 21, respectively, of thetrip rod, and I iix to the cylindrical portion 20, a perforated element26, which` is shown as provided with openings 27, 28, 29, and 30, onefor each oi' the actuating portions 22 to 25, inclusive. On the support7,

I mount a rod 31, adapted to slidably en-V to be retracted.

y I provide means for holding the trip rod.l

in engagement with the end of the rod 17 irrespective of the adjustmentof the latter. As shown, such means consists of a yrod 32, which iscrankedat 33, to fit over the square portion 21, of the trip rod. Theends of the rod 32, are connected with springs 34, so as to engage studs32 with opposite openings .inthe 'element' 26, and always hold the triprod retracted against the end of the stop 17.

' The springs 34', are connected at 35 to the reduced ends of pivot 8 ina manner to be nor-` mally under tension, and 1n a manner to be Iinclined downwardly from the horizontal so as to. always hold the rod32, in place.

It will be readily seen from the foregoing description that on to andfro, or reciprocatingl movement of the push rod 4, the trip rod willengage the trip lever 3, and actuate the same, and the support 7, willbe rocked from a normal position lin the direction of the arrow a, whilethe end 21, is released 4from the lever 3. The spring 12, will returnthe 4support 7, to a normal position after the trip rod has beenreleased from the lever 3.

It it is desired to advance the spark, the rod 17, will be adjusted soas to advance the trip rod outwardly in the bore 15, so as to .cause anearlier engagement with the lever 3. If it is desired to retard thespark, the rod 17 will be adjusted to permit retraction by the springs35, of the trip rod in the bore 15, so as to provide for a laterlengagement with the lever 3. The adjustment shown is the maximumretraction adjustment .for a maximum retard of the spark.

It will be readily seen that the device of my invention provides foradjustment during the operation ofthe engine so as to avoid thetroublesome operation of stopping to change the timing of theigniteractuating device.

In starting the engine, the spark can be retarded so as to permit ofturning the en- Loeejiei it can also be adjusted as desired after theoperation has been effective and while the engine is running.

While I have herein shown and described one specific form of myinvention, I do not wish to be limited thereto except for suchlimitations as the claims may import.

I claim:

1. In an internal combustion engine, a

v'push' rod, a trip bracket'adjustably mounted on said rod, an ignitertrip rod support piv- 'ote'dfon saidbracket to rock from a normals`yposition in one direction,"a"spring'forjholdey ing said support in'anormalI position, agtripv vrod rotatably and -longitudinally"movable irsaid support, a perforated'eleinent (inl said trip rod, a rod xed onsaid support and slidable in one 'of the 'perfrati'ons of said elementto hold the trip rod against rotation,

an adjustable stop for limiting the Inovement of the trip rod in saidsupport/in one direction, and spring means engaging said.

perforated element'to hold said trip rod inA engagement with saidadjustable stop, substantally as described.

2. In an internal combustion engine, a reciprocating rod, a trip bracketadjustably mounted on said rod, an igniter trip rod support on said,bracket, an igniter trip rod .longitudinally movable in said support, anadjustable stop for permitting said trip rod to advance or retard thesparking, spring means for holding said trip rod against said, stop, andslidable means for preventing rotation of said trip rod, substantiallyas described.

3. In an internal combustion engine, an igniter device, a trip rodhaving a plurality olf-independent portions for engaging saidy device toactuate the same, Vand means for holding said trip rod in any one ofseveral positions to dispose any one of said portions in engagingproximity to said device.

4. In anint-ernal combustion engine, an igniter device, an elementhaving a plurality of portions for engaging said device, and

means slidably connected with said element for holding'the same in anyone of a number of predetermined positions to maintain one of saidengaging portions in operative prox.- imity to said device,substantially as described. v

5. In an internal combustion engine, an

, with a 'plurality of independent actuating tially as described.

portions, means rotatably supporting said trip rod and mechanism havingslidableengagement with said trip rod, for holding the same in any oneof selected positions to dispose 'selected engaging portions inoperative proximity to said device and maintain said trip rod 'in suchselected 6. In antinternalccir-i'gbustion engine, an igniter device, atrip rod support havinga bore provided with a smooth and a threadedportion, a threaded rod in the threaded porposition, substantion of saidbore, a trip rod in the smooth bore portion, and adapted for engagementwith said device, means for locking the threaded rod in adjustedpositions to advance or retract the trip rod, means engaging the triprod to hold saine in engagement with said threaded rod, and meansslidably engaging the trip rod to hold same against rotation,substantially as described.

In testimony whereof I aiix my signature in presence of two witnesses.

ROY KELLEY.

Witnesses FRED J. KEMP,

. H. O. LOCKNER.

